No abstract available
MeSH terms
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Ampicillin / pharmacology*
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Child, Preschool
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Chloramphenicol / pharmacology*
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Haemophilus influenzae / drug effects*
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Humans
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Male
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Meningitis, Haemophilus / drug therapy*
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Penicillin Resistance
Substances
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Chloramphenicol
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Ampicillin